<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
  </head>
  <body>
    <div id="app">
      <input type="text" v-model="textValue" />
      <ul>
        <li v-for="item in list"></li>
      </ul>
    </div>

    <script src="../../Vue.js"></script>
    <script>
      new Vue({
        el: "#app",
        data: {
          list: [],
          textValue: "",
        },
        watch: {
          textValue(val) {
            // textValue一旦改变，就拿着新值去做数据请求
            // 把请求到的数组赋值给list
          },
        },
      });
    </script>
  </body>
</html>
